Download 8th grade science materials - A Teacher`s Portfolio by Layne C. Smith

December 9, 2008
8th grade Science: Mrs. Bryant
Sections 2.1 & 2.2
Vocabulary Quiz
Modified
Name: ___________________________ Date:____________________ Period____
1. A fracture in the Earth's lithosphere is called:
a. stress
b. fault
2. The force applied by an object pressing on, pulling on, or pushing against another
object is called:
a. stress
b. focus
3. A shaking of the ground caused by the sudden movement of large blocks of rocks
along a fault is called:
a. seismic wave
b. earthquake
December 11, 2008
8th grade Science: Mrs. Bryant
Sections 2.1 & 2.2
Vocabulary Quiz
Modified
Name: ___________________________ Date:____________________ Period____
Identify:
A. Pyroclastic flow
C. Magma
B. Lava
D.____ a mountain that forms as continental crust crumbles and bends into folds.
a. folded mountain
b. fault-block mountain
E.____are mountains that form as blocks of rock move up or down along normal
faults.
a. folded mountain
b. fault-block mountain
A.
____I am a ball of hot, solid metals at Earth's center.
B.
____I'm the name that Alfred Wegener gave to the huge supercontinent that he
proposed had once existed.
C.
_____I'm the thin layer of rock that surround Earth.
D.
_____I'm Earth's thickest layer, measuring nearly 2900 kilometers.
E.
_____I occur in a deep valley formed as tectonic plates move apart.
Word
1.
2.
3.
4.
5.
Bank
Inner Core
Pangea
Crust
Mantle
Rift Valley
Circle the word that correctly matches the definition.
6.
Definition: I am one plate sinking beneath another.
Continental Drift
A. Deduction
B. Subduction
7.
Definition: I'm the hypothesis that proposed that Earth's continents were once joined
in a single landmass and then gradually moved apart.
A. Continental Drift
B. Continental Joining
8.
Definition: I'm the layer of liquid metals that surrounds the inner core.
A. Outer Core
B. Mid Core
9.
Definition: I'm the transfer of heat within a material.
A. Condensation
B. Convection
10.
Definition: I'm Earth's crust and the very top of the mantle combined.
A. Lithosphere
B. Troposphere
When Mount St. Helens Blew Its Top!
By Joey Biega
December 2008
Title
When Mount St. Helens Blew Its Top!
Click to add text
When Mount St. Helens Blew Its Top!
Title
When Mount St. Helens Blew Its Top!
Title
When Mount St. Helens Blew Its Top!
When Mount St. Helens Blew Its Top!
It show location on an interactive map
46°12′00.17″N 122°11′21.13″W
And 4,605 feet (1,404 m) in the air
This is the age of rock
40,000 years
Mount St. Helens erupted on May 18, 1980, at
08:32 a.m. Pacific Daylight Time
First ascent 1853 by Thomas J. Dryer
When Mount St. Helens Blew Its Top!
Between 1980 and 1986, activity continued at
Mount St. Helens, with a new lava dome forming
in the crater. Numerous small explosions and
dome-building eruptions occurred. From
December 7, 1989 to January 6, 1990, and from
November 5, 1990 to February 14, 1991, the
mountain erupted with sometimes huge clouds of
ash.
People Who Got Hurt
The removal of the north side of the mountain
reduced St. Helens' height by about 1,300 feet
(400 m) and left a crater one to 2 miles (3.2 km)
wide and 0.5 miles (800 m) deep, with its north
end open in a huge breach. The eruption killed 57
people, nearly 7,000 big game animals (deer, elk,
and bear), and an estimated 12 million fish from a
hatchery.[6] It destroyed or extensively damaged
over 200 homes, 185 miles (298 km) of highway
and 15 miles (24 km) of railways
The next steps
Define the next steps
Analyze the ideas developed?
Continue with a larger group?
Develop tasks to follow up on
Turning ideas to reality
When Mount St. Helens Blew Its Top!
thermal energy;it ejected more than 0.67 cubic
miles (2.8 cubic km) of material. The removal of
the north side of the mountain reduced St. Helens'
height by about 1,300 feet (400 m) and left a
crater one to 2 miles (3.2 km) wide and 0.5 miles
(800 m)
Chapter 2 Test
Science: Mrs. Bryant
MODIFIED
Name________________________________ Date_______________________ Period______
Match the term with the word in the bank
A.______ An imaginary line about which a turning body, such as Earth rotates.
B.______ The motion of one body around another, such as Earth in its orbit around the sun; the time it
takes an object to go around once.
C.______ One part of a pattern of temperature changes and other weather trends over the course of a
year.
D._____ In an orbit, a position and time in which sunlight shines equally on the Northern Hemisphere
and the Southern Hemisphere; a time of year when daylight and darkness are nearly equal for
most of Earth.
E.______ In an orbit, a position and time during which one hemisphere gets the maximum area of
sunlight, while the other hemisphere gets its minimum amount.
F.______ A large, dark plain of solidified lava on the Moon.
G._____ An event during which one object in space casts a shadow onto another.
H._____ This occurs because the Moon's gravity changes the shape of Earth's oceans.
I._____ A round pit left behind on the surface of a planet or other body in space after a smaller object
strikes the surface.
K.____ The sun seems to darken because the Moon's shadow falls onto part of Earth.
Word Bank
1. axis of rotation
2. revolution
3. season
4. equinox
5. solstice
6. mare
7. eclipse
8. tides
9. solar eclipse
10. impact craters
Earth's Surface Quiz
November 11, 2008
Science: Mrs. Bryant
MODIFIED
Name________________________________ Date_______________________ Period______
Circle the correct answer
1. Represents Earth's curved surface on a flat map. (P.20)
a. Map Scale
b. Projection
2. Divides Earth in the norther and southern hemispheres. (P.18)
a. Equator
b. Relief Map
3. The difference between an area's highest and lowest points is the area's (P.25)
a. Relief
b. Slope
4. The contour interval on a particular map (P.26)
a. Is always the same
b. Varies with steepness
5. The shape of the land is called (P.24)
a. Slope
b. Topography
6. Is the physical or chemical breakdown of rocks (P.115)
a. Abrasion
b. Weathering
7. Ice, plant roots, and moving water can all cause weathering (P.116)
a. Exfoliation
b. Mechanical
8. Explains the meaning of each symbol on a map (P.17)
a. Map Legend
b. Map Scale
9. What are the location points for POINT A on the map below?
a. 30 N, 60 W
b. 30 S, 60 W
10. What are the location points for POINT b on the map below?
a. 20 S, 20 E
b. 20 N, 20 W
March 11, 2009
8th grade Science: Mrs. Bryant
Chapter 3 Quiz
Modified
Name: ___________________________ Date:____________________ Period____
I. Mitosis
A.
B.
C.
D.
E.
Identify the Stages:
1. Telophase_______
2. Anaphase_______
3. Metaphase______
4. Prophase_______
5. Interphase______
II. Meiosis
A.
B.
C.
D.
E.
F.
G.
H.
Identify the Stages:
1. Prophase I
______
2. Telophase II and Cytokinesis
______
3. Metaphase I
______
4. Anaphase II
______
5. Telophase and Cytokinesis
_______
6. Metaphase II
_______
7. Anaphase I
_______
8. Prophase II
_______
Vocabulary
a. _____a chemical that contains information for an organisms growth and functions
b. _____DNA wrapped around proteins in like thread around a spool and compacted into
structures
c. _____ normal sequence of development and division of a cell
d. _____ process of new tissue growth
e. _____ one organism produces one or more new organisms that are identical toitself and that
live independently of it
Word Bank
1.
2.
3.
4.
5.
DNA
Chromosomes
Cell cycle
Regeneration
Asexual reproduction
Axis of Rotation
Definition: an imaginary line about which a turning body,
such as Earth rotates
Revolution
Definition: The motion of body around another, such as
Earth in its orbit around the sun.
Season
Definition: One part of a pattern of temperature changes
and other weather trends over the course of a year
Equinox
Definition: A time of year when daylight and darkness are
nearly equal for most of Earth
Solstice
Definition: A position and time during which which one
hemisphere gets the maximum area of sunlight, such as the
summer solstice
Mare
Definition: Dark plain of solidified lava that look like “seas”
on the moon
Eclipse
Definition: An event in which one object in space casts a
shadow onto another
Tides
Definition: This occurs because the Moon's gravity
changes the Earth's shape
Impact Crater
Definition: A round pit left behind on the surface of a
planet or other body in space after a smaller object
strikes the surface.
How the moon was formed
Definition:
At the time Earth formed 4.5 billion years ago, other
smaller planetary bodies were also growing. One of
these hit earth late in Earth's growth process, blowing
out rocky debris. A fraction of that debris went into
orbit around the Earth and formed into the moon.
Chapter 1 Test
Science: Mrs. Bryant
“History of Life on Earth”
MODIFIED
Name________________________________ Date_______________________ Period______
1. Scientists use 2 approaches to dating fossils. (Fill in the blank)
a.______________________________________________________________
b.______________________________________________________________
2. True or False: Unicellular organisms are made of a single cell. Fossil record show this
beginning about 3.8 billion years ago.
3. True or False: Protozoa were the first animal species.
4. The Permian extinction occurred: (Choose the correct answer)
A. About 250 million years ago in which 90 percent of the species living in the ocean became
extinct.
B. 65 million years ago the fossil record ends for dinosaurs; caused by an asteroid that hit Earth.
5. The Cretaceous extinction occurred: (Choose the correct answer)
A. About 250 million years ago in which 90 percent of the species living in the ocean became
extinct.
B. 65 million years ago the fossil record ends for dinosaurs.
6. True or False: Charles Darwin studied fossils and animals while aboard the Beagle.
7. Charles Darwin noticed many differences in _________ _and _____________ on the
___________________________ islands. Some _____________________ had short necks
and some had________________________________. (Fill in the blank)
8. True or False: Darwin discovered that bluebirds had different shaped beaks and were different
sizes.
9. True or False: Darwin knew from personal experience that breeders can produce new varieties
of an animal over time. This was called natural selection.
10. Natural selection is:
A. when members of a species best suited to their environment die out at a higher rate.
B. when members of a species best suited to their environment survive and reproduce at a
higher rate. (Choose the correct answer)
Match the following from the Word Bank:
A. ______ When an organism reproduces, it usually produces more offspring than the environment can
support.
B._______ Within a species, there are natural differences in traits.
C._______ When a mutation occurs that makes an individual better able to survive than other members
of the group.
D._______This becomes more apparent over several generation. The ones that survive longer are more
likely to reproduce more offspring.
E._______ The evolution of a new species from an existing species.
F._______ Similarities in structure;these were once fully functional in an ancestral group but are now
reduced and unused.
Word Bank
1.
2.
3.
4.
5.
6.
Adaptation
Speciation
Overproduction
Selection
Vestigial organs
Variation
Axis of Rotation: J
Revolution: I
Season: G
Equinox: H
Match the picture
and the word(s) with
the word bank below.
Solstice: F
Mare:D
Eclipse: E
Tides: B
Impact Crater: C
How the moon was formed: A
Word Bank
(1) ______Definition: an imaginary line about which a turning body, such as Earth
rotates
(2)______Definition: The motion of body around another, such as Earth in its orbit
around the sun.
(3)______Definition: One part of a pattern of temperature changes and other weather
trends over the course of a year.
(4)______Definition: A time of year when daylight and darkness are nearly equal for
most of Earth
(5)______Definition: A position and time during which which one hemisphere gets the
maximum area of sunlight.
(6)______Definition: Dark plain of solidified lava that look like “seas” on the moon
(7)______Definition: An event in which one object in space casts a shadow onto another
(8)______Definition: This occurs because the Moon's gravity
(9)______Definition: A round pit left behind on the surface of a planet or other body in
space after a smaller object strikes the surface.
(10)______Definition:At the time Earth formed 4.5 billion years ago, other smaller
planetary bodies were also growing. One of these hit earth late in Earth's growth
process, blowing out rocky debris. A fraction of that debris went into orbit around the
Earth and formed into the moon.
4. The vibrations caused by an earthquake is called:
a. epicenter
b. seismic wave
5. In an earthquake, the point underground where the rocks first begin to move is
called:
a. focus
b. epicenter
6. The point on Earth's surface directly above the focus of an earthquake is called
the: a. epicenter
b. fault spot
7. An instrument that constantly records ground movements is called:
a. barometer
b. seismograph
Inner Core
Definition: I am a ball of hot, solid metals at Earth's
center (P.10).
Subduction
Definition: I am one plate sinking beneath another (P.30).
Pangea
Definition: I'm the name that Alfred Wegener gave to the
huge supercontinent that he proposed had once existed
(P.16).
Continental Drift
Definition: I'm the hypothesis that proposed that Earth's
continents were once joined in a single landmass and then
gradually moved apart (P.14).
Outer Core
Definition: I'm the layer of liquid metals that surrounds
the inner core. (P.10).
Crust
Definition: I'm the thin layer of rock that surround Earth
(P.11)
Convection
Definition: I'm the transfer of heat within a material.
(P.17).
Lithosphere
Definition: I'm Earth's crust and the very top of the
mantle combined. (P.11).
Mantle
Definition: I'm Earth's thickest layer, measuring nearly
2900 kilometers. (P.11)
Rift Valley
Definition: I occur where tectonic plates move apart.
(P.23).